On Our Way to the Furthest Places. The Large Millimeter Telescope Alfonso Serrano

The Large Millimeter Telescope Alfonso 
Serrano (http://lmtgtm.org/?lang=en), also known as LMT (or GMT, 
its Spanish initials), is a radio telescope 
with a 50-meter diameter primary 
reflector, designed and optimized to make astronomical observations at millimeter wavelengths, 
particularly between 0.85 and 4.0 millimeters. It 
is located at the top of the extinct Sierra Negra or 
Tliltépetl volcano at an altitude of 4580 meters 
above mean sea level, within the Pico de Orizaba 
National Park, on the border between the states of 
Puebla and Veracruz [Box 1]. It was built through a 
binational collaboration between Mexico and the 
United States, and it is operated by the National 
Institute of Astrophysics, Optics and Electronics 
(INAOE) and the University of Massachusetts 
Amherst (UMass Amherst).